You say that every time you take the boat out you have to add about 2
oz. of lubricant.

How many times did it happen? If it was 3-4 times it can still be air
purging out. On my drive I experience exactly the same thing during
the first 3, maybe 5 times I use the boat after an oil change. If you
had done it 5 or more times, than you definitely have a leak. Given
that you see no evidence of leak when the boat is stationary, the most
plausible explanation is that it leaks through the seal around the prop
shaft, and only when the prop is turning. This would help to disperse
the oil in the water so it won't be visible.

Fortunately, the oil seal around the prop shaft is relatively easy to
replace because the drive does not have to be removed and disassembled.




Mr Wizzard wrote:
"Eisboch" wrote in message
...

"Mr Wizzard" wrote in message
. ..
Ok, I know this subject (and all of my posts) are like
beating a dead horse, but problem is still not solved,
so I thought I'd throw it back out there to re-visit it.

I'm hoping that some well-seasoned Mercruiser
mechanic who is familiar with the newer Alpha-1
drives may see it and know what the issue is.

2005 Bayliner, 3.0L Alpha-1 started using gear
lube on a regular basis - about 1/2 inch per hour.
Took it to a shop and they said no problem found,
and it passes pressure test. They did the annual
maintenance, pulled the drive, checked alignment,
and all the other maintenance items, and said its
all in good shape - basically a new boat with about
50 hours on it, nothing to worry about.

But yet when I take it out on the lake, for every
hour of running time, the gear lube level in the
gear lube monitor (gear lube reservoir on motor)
drops about 1/2 (which I think is like 2 ounces).

Is there ANY one who is experiencing this on the
2005 Bayliner 175 with the 3.0L Alpha-1 ???

I cant believe that I'm the only one with this issue.
No trace of gear lube, no smell, no rainbow's, no
drops/leak sitting in the driveway for weeks on
end. Where the *HELL* is the lube GOING ??

Good Karma due to anyone who knows about this!
(or maybe sell the boat, and good Karma due *me* ?)



Are you adding gear lube to the reservoir when it drops?
Check your bilge under the engine.

Adding lube to the reservior, yes. Bilge so clean
you can eat out of it. I simply don't get it. Also,
I would think that if reservoir, and associated
piping were leaking, it would be leaking all the
time, not just when running. Its *gotta* be
something that is happening "at" speed. Either
some strange vacuum, or water vortex being
setup aroud the prop, and maybe the water
flow is "sucking" the lube out from around
the prop seal at speed ? I'm a a total loss here.


Eisboch